1 Trillion Digits of Pi
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- Publication date
- 2016-11-11
- Topics
- pi, digits, decimal, 3.141, mathematics, constant, y-cruncher
- Collection
- opensource_media
- Language
- English
- Item Size
- 436.8G
- Addeddate
- 2017-03-05 02:25:50
- Identifier
- pi_dec_1t
- Identifier-ark
- ark:/13960/t37137s3x
- Scanner
- Internet Archive HTML5 Uploader 1.6.3
- Year
- 2016
comment
Reviews
(12)
Subject: sad
(i actually promise it isn't a virus)
https://www.youtube.com/watch?v=dQw4w9WgXcQ
Subject: Very Useful
Subject: A trillion numbers does not need a trillion bytes.
Where is it only 100 GB? These are 10 .zip files of about 45 GB each, which is right about on par with what you should expect with 4 bits per digit.
It also has some compression. Even though the digits of π are random and non-periodic, there is significant compression out of a trillion characters that can be saved.
Subject: torrent only 100b
Also i didnt say it like ... that. But since what were downloading here is a .txt thats literally how it works.
If you really wanna be efficient in storing something like that you could take 19 digits and store them as uint64, thats how y-cruncher does it in its .ycd files. You could go even further and use like 5000 bits instead of just 64 (with a significant performance decrease obv), wich would be close to perfection. Obviously the best way would be to just convert to base 2
Storing a million digits in a .txt file will take ~977 kib
4bit ~488 kib
uint64 ~411 kib
5kbits ~407 kib
base2 ~405 kib
Subject: burada mevcud
Subject: Not on .epub, though!
Pity it's not on .epub because I can't read it on ... my phone.
Anyway, I'm downloading it to check it out.
Subject: Very good
Subject: What the pi^e times trillion digits of pi?
Subject: .
Subject: Ummmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmm..................................
No
Subject: Got any more?
http://www.numberworld.org/ftp/5%20trillion%20digits%20of%20Pi%20(0t%20-%201t).torrent
http://www.numberworld.org/ftp/5%20trillion%20digits%20of%20Pi%20(1t%20-%202t).torrent
http://www.numberworld.org/ftp/5%20trillion%20digits%20of%20Pi%20(2t%20-%203t).torrent
http://www.numberworld.org/ftp/5%20trillion%20digits%20of%20Pi%20(3t%20-%204t).torrent
http://www.numberworld.org/ftp/5%20trillion%20digits%20of%20Pi%20(4t%20-%205t).torrent
Subject: Holy shit
1
It would've taken 50 hours (that's what it estimated)
2
Just one those files would've taken ... up my entire memory on my phone
Great job though!
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